white mulberry, morus alba tatarica

white mulberry, morus alba tatarica. these are 2-3 years old from seed, most went in the toot cellar but a couple of patches like this will stress test the cold hardiness. it’s a zone 3/4 borderline shrub, yet I saw a large one locally this summer and tried mulberry for the first time, proving mulberry can grow in manitoba and survive -40. hoping my seedlings are equally as tough. I’m out of seed now but can propagate these selections with softwood